Attachment for supply-tanks



(No Model.)

W. B. GHAMBERLIN.

. ATTACHMENT FOR SUPPLY TANKS. No. 376,292. Patented Jan. 10, 1888.

UNITED STATES PATENT Gr mes.

WILLIS B. OHAMBERLIN, OF WORCESTER, MASSACHUSETTS.

ATTACHMENT FOR SUPPLY-TANKS.

SPECIFICATION forming part; of Letters Patent No. 376.292, dated January10, 1888.

Application filed May 16,1887. Serial No. 238,321. (No model.)

I To all whom it may concern.-

, Be it known that WILLIS B. CHAMBER- LIN, a citizen of the UnitedStates, residing at Worcester, in the county of \Vorcester and State ofMassachusetts, have invented certain new and useful Improved Attachmentsfor Sure Supply-Tanks, of which the following is aspecification.

This invention relates'to the so-called so re supply-cisterns forwater-closets, the object being to provide improved means forcontrolling and regulating both the supply and discharge valves, whichis accomplished by the mechanism illustrated in the accompanyingdrawings, forming part of the following specification, and clearlypointed out in the appended claims, reference being had to the drawings,ofwhich- Figure 1 shows a sectional elevation of a supply tank orcistern to which my improvements are applied; and Fig. 2 is a similarview, but showing the valves open.

Similar reference-lettersindicate corresponding parts.

A is the tank or cistern; B, the supply and G the discharge pipes, theformer being pro vided with the ordinary ball cock or valve, B, its rodor tube 1) connecting the Valveopcrating armb with the loaded sphere orball b*, which is designed to float upon the surface of the water, andthereby control the supply of water to the tank, as hereinafter fullyexplained.

For the discharge-pipe C any of the valves in present use by the trademay be applied,

that shown in the drawings being an ordinary valve, 0, having a flapcover, 0, hinged, as shown, and provided in its top with anoverflow-pipe, c, rising within two inches (more or less) of the top ofthe tank A.

A pull-chain, D, passes over agrooved pulley, E, located on top of thetank,as shown, and is attached to the cover 0 of the dischargevalve 0.Aloose branch chain, D, connecting the chain D with the rod or tube 12,is also provided, for a purpose hereinafter explained.

In Fig. l of the drawings both supply and drain valves or cocks arerepresented closed, and in Fig. 2 both are shown open. The dotted line Xin each view represents the surface of the water in tank.

The pulley E is provided with a counterweight, e,which must besufficient to overloadauce the weight of the hinged cover 0 when thesame 'is open, as seen in Fig. 2, and the branch chain D is of therequired length and 'l,wheu the pull cord or chain D is pulled thepulley E, cover 0, and branch chain D assume the position sh own in Fig.2,the counter-weight e of the pulley E holding the hinged cover of thecock 0 open, thus permitting a full discharge through the pipe 0. At thesame time, as the water lowers, the supply-coclgwhich is controlled bythe movement of the loaded ballfloat bffiis gradually opened, causing anincrease in the supply as the ball drops. The outlet being so muchlarger than the inlet, however, the water and the ball-float b arepermitted to fall to apoint shown by dotted line X, Fig. 2,

when, by means of the branch chain D and the loaded float bflwhich issufficiently heavy to overbalance the counter-weight on the pulley E,the said pulley is returned to its normal position and the outlet ordischarge valve 0 is closed, thus allowing the water and the loadedfloat to again rise to the point desig nated at X, Fig. 1. In thismanner a simple and automatic means for cutting off the discharge fromthe tank or the supply of water to a closet is readily and economicallyaccomplished.

' Having described my improvements and their especial application, whatI claim, and desire to secure by Letters Patent, is-

1. In a supply-tank, the combination of a supply-cock, itsoperatinglever and a loaded float attached thereto, a discharge-valve,and a grooved counterweighted pulley located at the top of said tank forcarrying a pull-cord which is connected thereto, the said pull-cord andbranch cords or chains connecting said pullcord with the operating-leverof supply-cock and the said discharge-valve, all operating substantiallyin the manner and for the purpose set forth.

2. In a supply-tank, the combination of a supply-cock, itsoperating-lever and float, a discharge-valve and a groovedeonnterweighted pulley located at the top of said tank for carrying apull-cord which is attached thereto, the said pull-cord and branch cordsor chains connecting the latter with the operatingdever of saidsupply-cock and the said dischargevalve, the float on theoperating-lever of said supply-cock being suflieientl y loaded tooverthrow the weighted pulley at the proper time to automatically closesaid discharge-valve, all substantially as and for the purposeexplained.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIS B. CHAMBERLIN.

\Vitnesses:

J. B. THURSTON,

NATHL. E. MARTIN.

